Magnetic phases and exchange coupling in TbFeCo films

C. L. Zha*, J. Gao, B. Ma, Z. Z. Zhang, Q. Y. Jin

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

Abstract

TbFeCo is an important MO media material and even a candidate for hybrid recording. Our experimental results show that two magnetic phases can co-exist in TbFeCo films with orthogonal easy axes, which are along the film plane or out-of-plane. Suggested by the hystersis curves measured by the extraordinary Hall effect (EHE) and vibrated sample magnetometer (VSM), there is a transition region between domains with different easy axes of magnetization. The exchange coupling in between acts as a biased field, which may migrate the magnetic switching field for each loop.

Original languageEnglish
Article number59660B
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5966
DOIs
StatePublished - 2005
Externally publishedYes
EventSeventh International Symposium on Optical Storage, ISOS 2005 - Zhanjiang, China
Duration: 2 Apr 20056 Apr 2005

Keywords

  • Exchange coupling
  • Magnetic phase
  • Transition region

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